i think i am going to just run some antifreeze throught it and then shut it down and most likely drain the engine and leave it be .i found some SIERRA Antifreeze-Coolant premium quality propylene glycol for an engine not RV stuff, hopefully this stuff won't kill my dog .

i may put some heat to them and see what happens .i'll post back if i ever get them out.
so if they do come out without stripping , can i replace them with brass plugs ?

i think i am going to just run some antifreeze throught it and then shut it down and most likely drain the engine and leave it be .i found some SIERRA Antifreeze-Coolant premium quality propylene glycol for an engine not RV stuff, hopefully this stuff won't kill my dog .

i may put some heat to them and see what happens .i'll post back if i ever get them out.
so if they do come out without stripping , can i replace them with brass plugs ?

thanks for the feedback guys .

cheers Jake

Brass should fit just fine.

Stabilize your gasoline while running. Put some stabilizer in the tank and then allow that treated fuel to circulate through the carb. it will start much nicer in the spring. RV stuff is just fine and less expensive.

I had the exact same problem this fall with the PS190 I bought this summer. My manifolds had the 1/2 inch square female plugs mentioned earlier in this thread. They were all ready rounded out so I removed the manifolds this fall, cut a short piece of 1/2 x 1/2 bar stock and spot welded them into the pipe plugs. While they were hot I was able to break them loose with a breaker bar. Heat from welding did the trick. I chased the threads and will install new plugs this spring. I plan on using the Mercrueser plastic plugs with the drain valves. Had really good luck with them in he past.

I had the same problem on my Prostar 190 when I first bought it. I removed manifolds and risers. Used a small oxy-acetalene rig and heated them up and unscrewed them because they will strip the centers out if stuck or it breaks off a peace of the plug. You can heat the plugs first then heat around them. Also good time to take risers off and clean and inspect both riser and manifolds. Clean sand,wire brush and repaint exterior and install these drains with plastic hose on them long enough to stick through drain plug hole so no rusty water drains into bilge. Also replace motor drains with easy drains and hose too. http://www.skidim.com/prodinfo.asp?number=MCM000 Then put back together with new gaskets and new bolts.

I had the same problem on my Prostar 190 when I first bought it. I removed manifolds and risers. Used a small oxy-acetalene rig and heated them up and unscrewed them because they will strip the centers out if stuck or it breaks off a peace of the plug. You can heat the plugs first then heat around them. Also good time to take risers off and clean and inspect both riser and manifolds. Clean sand,wire brush and repaint exterior and install these drains with plastic hose on them long enough to stick through drain plug hole so no rusty water drains into bilge. Also replace motor drains with easy drains and hose too. http://www.skidim.com/prodinfo.asp?number=MCM000 Then put back together with new gaskets and new bolts.